Geotechnical engineering investigation drilling rig

Abstract

The utility model relates to a geotechnical engineering investigation drilling device which comprises a drill bit (1), a drill rod (2), a curvature measuring sensor (3) used for measuring drilling perpendicularity and a perpendicularity correcting assembly (4) used for adjusting the drilling perpendicularity. A curvature measuring sensor (3) is arranged on the drill bit (1), the bottom of the drill rod (2) is connected with the drill bit (1), the top of the drill rod (2) extends out of the ground, and a perpendicularity correcting assembly (4) is arranged on the outer side of the top of the drill rod (2). Compared with the prior art, the drilling verticality can be adjusted, so that the problem of deflection in drilling construction is solved, the accuracy of drilling parameters is improved, and a more accurate basis is provided for subsequent engineering design.

Description

Technical Field

[0001] The utility model relates to the technical field of drilling devices, in particular to a geotechnical engineering survey drilling device. Background Art

[0002] In the current geotechnical engineering investigation, there are three common exploration methods, namely drilling, probing, and pit exploration. Drilling is an important method to obtain accurate geological data under the surface. Through special mechanical equipment or tools, holes are drilled in the rock (soil) layer, and rock (soil) cores (samples) are taken out to understand the stratum conditions. Through the original soil samples drilled, not only can the soil properties, stratum structure and geological structure of the stratum be intuitively explored, but also the soil samples can be sent to the soil test room for corresponding indoor tests to obtain accurate mechanical parameters. Due to the above reasons, drilling is widely used in engineering investigation. Through drilling and coring, accurate geotechnical physical and mechanical indicators and geotechnical characteristics analysis are provided for subsequent engineering design and construction.

[0003] Drilling technology is a geophysical exploration method that uses a drilling rig to drill holes in rock and soil layers to obtain underground geological information, rock and soil samples, and groundwater samples. It mainly uses a drilling rig to control the drill tool to drill from the surface to the underground, forming a cylindrical borehole underground, and obtaining rock cores, soil, water and other samples at different depths through drilling, and sending them to the geotechnical laboratory for analysis to obtain accurate soil properties. Drilling generally includes drilling rigs, motors, transmission devices, and supporting drilling towers, drill rods, etc. According to its loading method, it can be divided into integral type and assembly type. The former is divided into fixed type, towed type and self-propelled type according to mobility. According to the purpose of drilling equipment, it can be divided into engineering geology, hydrological wells, engineering construction, core and sampling drilling equipment, etc. After years of development, drilling has accumulated a lot of engineering experience and effectively promoted the development of the geotechnical engineering survey industry.

[0004] In actual field operations, due to various reasons, the drill rod may deviate during drilling, and it is difficult to detect it in time. Even if it is discovered later, it is difficult to correct it in time. As a result, the soil layer distribution and soil layer parameters obtained will have large deviations, which will have a great impact on the subsequent survey and design work. Utility Model Content

[0005] The utility model aims to provide a geotechnical engineering survey drilling device, which can adjust the verticality of drilling and thus reduce the problem of deflection in drilling construction.

[0006] The purpose of the utility model can be achieved by the following technical solutions: A geotechnical engineering survey drilling device, including a drill bit, a drill rod, a curvature measurement sensor for measuring drilling verticality, and a verticality correction component for adjusting drilling verticality;

[0007] The drill bit is provided with a curvature measuring sensor, the bottom of the drill rod is connected to the drill bit, the top of the drill rod protrudes from the ground and a verticality correction component is provided on the outside.

[0008] Preferably, the verticality correction assembly comprises a guide cylinder and an adjusting member for adjusting the verticality of the drill rod through the guide cylinder;

[0009] The top of the drill rod passes through a guide cylinder and is connected to a rotation driving assembly for driving the top of the drill rod to rotate.

[0010] Further preferably, the inner wall size of the guide cylinder is not smaller than the drill rod and the inner wall is smooth and wear-resistant.

[0011] Further preferably, a plurality of hydraulic adjustment members are symmetrically provided on the outer side of the guide cylinder.

[0012] More preferably, the hydraulic adjustment member comprises a transverse hydraulic telescopic rod and an arc-shaped plate arranged at the end of the transverse hydraulic telescopic rod;

[0013] The arc plate has an arc structure matching the guide cylinder.

[0014] Preferably, four hydraulic adjustment members are symmetrically provided on the outer side of the guide cylinder, and the central angle of the arc plate is 30-90°.

[0015] Further preferably, the central angle of the arc-shaped plate is 60-90°.

[0016] Further preferably, the four hydraulic adjustment members are concentrically arranged on an annular fixing plate, and the annular fixing plate is fixed on the ground.

[0017] Preferably, the transverse hydraulic telescopic rod is arranged on the height adjustment assembly.

[0018] Further preferably, the height adjustment assembly includes a vertical hydraulic telescopic rod arranged vertically and a base arranged on the ground for supporting the vertical hydraulic telescopic rod.

[0019] More preferably, the height adjustment assembly also includes a displacement sensor.

[0020] Preferably, the geotechnical engineering investigation and drilling device further comprises a control component, and the curvature measurement sensor and the verticality correction component are both connected to the control component.

[0021] Further preferably, a plurality of wireless transmitters are provided on the drill rod at intervals along the axial direction, and the curvature measurement sensor is connected to the control component signal via the wireless transmitter.

[0022] More preferably, the drill rod is provided with a groove for installing a wireless transmitter.

[0023] Further preferably, the control component includes a PLC controller.

[0024] Preferably, the drill rod comprises a plurality of detachably connected solid rods, and the lowest solid rod is detachably connected to the drill bit.

[0025] Preferably, there are a plurality of curvature measurement sensors, each of which is evenly distributed on the outside of the probe, and each of which is located at the same radial position of the probe.

[0026] Preferably, the detection end of the curvature measurement sensor is a flexible belt-shaped structure, and the detection end of the curvature measurement sensor is attached to the outer side of the probe.

[0027] Preferably, the curvature measurement sensor is a bending soft angular displacement sensor.

[0028] Compared with the prior art, the utility model has the following beneficial effects:

[0029] 1. The utility model can adjust the verticality of drilling through the coordinated setting of the curvature measurement sensor and the verticality correction component, thereby reducing the problem of deflection in drilling construction;

[0030] 2. The utility model can monitor the working condition of the probe in real time, facilitate timely adjustment, reduce probe deflection, improve test accuracy, and avoid problems such as inaccurate data caused by drilling probe deflection;

[0031] 3. The utility model can automatically control the verticality of drilling, facilitate construction, improve work efficiency, and reduce the labor intensity of drilling work;

[0032] 4. The verticality correction assembly of the utility model has a simple structure and can adjust the verticality of the drill rod through the cooperation of multiple adjustment parts to improve the verticality of drilling. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 This is a schematic diagram of the structure of the geotechnical engineering survey and drilling device of the utility model;

[0034] Figure 2 It is a partial structural schematic diagram of the geotechnical engineering survey and drilling device of the utility model;

[0035] Figure 3 This is a working principle diagram of a verticality correction component of the utility model;

[0036] Figure 4 This is a working principle diagram of another verticality correction component of the utility model;

[0037] In the figure: 1-drill bit, 2-drill rod, 3-curvature measurement sensor, 4-verticality correction assembly, 41-guide cylinder, 42-adjusting member, 421-transverse hydraulic telescopic rod, 422-arc plate, 43-annular fixing plate, 5-height adjustment assembly, 51-vertical hydraulic telescopic rod, 52-base, 6-wireless transmitter, 7-control assembly, 8-connecting member, 9-displacement sensor. DETAILED DESCRIPTION

[0038] The present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. This embodiment is implemented based on the technical solution of the present invention, and provides a detailed implementation method and a specific operation process, but the protection scope of the present invention is not limited to the following embodiments.

[0039] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0040] In conjunction with the accompanying drawings, some embodiments of the present invention are described in detail below. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0041] Example 1

[0042] A geotechnical engineering survey drilling device comprises a drill bit 1, a drill rod 2, a curvature measurement sensor 3 and a verticality correction component 4.

[0043] Among them, a curvature measurement sensor 3 is provided on the drill bit 1, which can be used to measure the verticality of drilling during the drilling process. The drill rod 2 is connected above the drill bit 1, and the top of the drill rod 2 extends out of the ground to connect to a rotation drive component for driving its rotation. The verticality correction component 4 is arranged on the outside of the part of the drill rod 2 extending out of the ground, which is used to adjust the verticality of drilling.

[0044] Example 2

[0045] A geotechnical engineering survey drilling device, such as Figure 1 As shown, a plurality of wireless transmitters 6 are provided at intervals along the axial direction on the drill rod 2 , the curvature measurement sensor 3 is connected to the control component 7 via the wireless transmitter 6 , and the verticality correction component 4 is also connected to the control component 7 .

[0046] This embodiment adopts wireless transmission technology to transmit data to the control component 7 in real time, and controls the verticality correction component 4 to calibrate the verticality of drilling through the control component 7, thereby reducing the problem of deflection during drilling construction. The rest is the same as the first embodiment.

[0047] Example 3

[0048] A geotechnical engineering survey drilling device, the drill rod 2 includes a plurality of solid rods detachably connected by a connector 8, and the end solid rod is detachably connected to the drill bit 1. The connector 8 can be in various forms such as a flange, a buckle, a pin, a sleeve, etc. The rest is the same as that of embodiment 2.

[0049] The drill rod 2 is detachably connected in multiple sections, and its length can be adjusted according to the survey needs. The drill rod 2 is detachably connected to the drill bit 1. After the drilling device of this embodiment successfully forms a cylindrical borehole underground, the drill bit 1 can be replaced with a sampling key during the sampling stage. The drill rod 2 of this embodiment can be used to obtain core, soil, water and other samples at different depths through drilling, and send them to the geotechnical laboratory for analysis to obtain accurate soil properties.

[0050] Example 4

[0051] A geotechnical engineering survey drilling device comprises a drill bit 1, a drill rod 2, a curvature measurement sensor 3 and a verticality correction component 4.

[0052] Among them, a curvature measurement sensor 3 is provided on the drill bit 1, which can be used to measure the verticality of drilling during the drilling process. The drill rod 2 is connected above the drill bit 1, and the top of the drill rod 2 extends out of the ground to connect to a rotation drive component for driving its rotation. The verticality correction component 4 is arranged on the outside of the part of the drill rod 2 extending out of the ground, which is used to adjust the verticality of drilling.

[0053] like Figure 3 As shown, the verticality correction assembly 4 of this embodiment is arranged on the ground, and includes a guide cylinder 41, an adjustment member 42 and an annular fixing plate 43. Specifically, the guide cylinder 41 is sleeved on the outside of the drill rod 2, and the inner wall size is not less than the drill rod 2 and is smooth. A plurality of adjustment members 42 are symmetrically arranged on the outside of the guide cylinder 41. The adjustment members 42 are hydraulically adjusted, including a transverse hydraulic telescopic rod 421 and an arc plate 422. One end of the transverse hydraulic telescopic rod 421 is connected to the annular fixing plate 43, and the other end is connected to the arc plate 422. The arc plate 422 can abut against the guide cylinder 41. The verticality of the drill rod 2 can be adjusted by the cooperation between the adjustment members 42, thereby realizing the adjustment of the drilling verticality.

[0054] Example 5

[0055] A geotechnical engineering survey drilling device comprises a drill bit 1, a drill rod 2, a curvature measurement sensor 3 and a verticality correction component 4.

[0056] Among them, a curvature measurement sensor 3 is provided on the drill bit 1, which can be used to measure the verticality of drilling during the drilling process. The drill rod 2 is connected above the drill bit 1, and the top of the drill rod 2 extends out of the ground to connect to a rotation drive component for driving its rotation. The verticality correction component 4 is arranged on the outside of the part of the drill rod 2 extending out of the ground, which is used to adjust the verticality of drilling.

[0057] like Figure 4 As shown, the verticality correction assembly 4 of this embodiment includes a guide cylinder 41 and an adjustment member 42. Specifically, the guide cylinder 41 is sleeved on the outside of the drill rod 2, and the inner wall size is not less than the drill rod 2 and is smooth. A plurality of adjustment members 42 are symmetrically arranged on the outside of the guide cylinder 41. The adjustment members 42 are hydraulically adjusted, including a transverse hydraulic telescopic rod 421 and an arc plate 422. One end of the transverse hydraulic telescopic rod 421 is connected to the height adjustment assembly 5, and the other end is connected to the arc plate 422. The arc plate 422 can abut against the guide cylinder 41. The height adjustment assembly 5 includes a base 52 arranged on the ground and a vertical hydraulic telescopic rod 51 arranged on the base 52. The vertical hydraulic telescopic rod 51 can adjust the height of the transverse hydraulic telescopic rod 421.

[0058] In this embodiment, both the transverse hydraulic telescopic rod 421 and the vertical hydraulic telescopic rod 51 may be provided with a displacement sensor 9 to monitor the displacement.

[0059] With the continuous development of urbanization, higher requirements are put forward for geotechnical engineering investigation, and there are more and more exploration projects for deep soil layers, which puts higher requirements on drilling construction. The present invention improves the existing drilling equipment, adds a curvature sensor in the drilling probe, thereby obtaining the verticality data of the drilling in real time, and calibrates the drilling penetration angle through the verticality correction component, thereby effectively controlling the verticality of the drilling and obtaining more accurate soil layer parameters, which greatly improves the accuracy of the drilling parameters and provides a more accurate basis for subsequent engineering design.

[0060] The above description of the embodiments is to facilitate the understanding and use of the utility model by those skilled in the art. It is obvious that those familiar with the art can easily make various modifications to these embodiments and apply the general principles described herein to other embodiments without creative work. Therefore, the utility model is not limited to the above embodiments, and improvements and modifications made by those skilled in the art based on the disclosure of the utility model without departing from the scope of the utility model should be within the scope of protection of the utility model.

Claims

1. A geotechnical engineering survey drilling device, characterized in that: It comprises a drill bit (1), a drill rod (2), a curvature measurement sensor (3) for measuring drilling verticality, and a verticality correction component (4) for adjusting drilling verticality; The drill bit (1) is provided with a curvature measuring sensor (3), the bottom of the drill rod (2) is connected to the drill bit (1), the top of the drill rod (2) protrudes from the ground and a verticality correction component (4) is provided on the outside.

2. The geotechnical engineering investigation and drilling device according to claim 1, characterized in that: The verticality correction assembly (4) comprises a guide cylinder (41) and an adjustment member (42) for adjusting the verticality of the drill rod (2) via the guide cylinder (41); The top of the drill rod (2) passes through a guide cylinder (41) and is connected to a rotation drive assembly for driving the drill rod (2) to rotate.

3. The geotechnical engineering investigation and drilling device according to claim 2, characterized in that: The inner wall size of the guide cylinder (41) is not smaller than the drill rod (2) and the inner wall is smooth.

4. The geotechnical engineering investigation and drilling device according to claim 2, characterized in that: A plurality of hydraulic adjustment parts are symmetrically arranged on the outer side of the guide cylinder (41).

5. The geotechnical engineering investigation and drilling device according to claim 4, characterized in that: The hydraulic adjustment member comprises a transverse hydraulic telescopic rod (421) and an arc-shaped plate (422) arranged at the end of the transverse hydraulic telescopic rod (421); The arc plate (422) has an arc structure matching the guide cylinder (41).

6. The geotechnical engineering investigation and drilling device according to claim 5, characterized in that: Four hydraulic adjustment members are symmetrically arranged on the outer side of the guide cylinder (41), and the central angle of the arc plate (422) is 30-90°.

7. The geotechnical engineering investigation and drilling device according to claim 6, characterized in that: The four hydraulic adjustment members are concentrically arranged on an annular fixing plate (43), and the annular fixing plate (43) is fixed on the ground.

8. The geotechnical engineering investigation and drilling device according to claim 5, characterized in that: The transverse hydraulic telescopic rod (421) is arranged on the height adjustment component (5); The height adjustment assembly (5) comprises a vertical hydraulic telescopic rod (51) arranged vertically and a base (52) arranged on the ground for supporting the vertical hydraulic telescopic rod (51).

9. The geotechnical engineering investigation and drilling device according to claim 1, characterized in that: The geotechnical engineering survey drilling device also includes a control component, and the curvature measurement sensor (3) and the verticality correction component (4) are both connected to the control component.

10. The geotechnical engineering investigation and drilling device according to claim 9, characterized in that: A plurality of wireless transmitters are arranged at intervals on the drill rod (2) along the axial direction, and the curvature measurement sensor (3) is connected to the control component signal via the wireless transmitter.

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